diff options
Diffstat (limited to 'board/hisilicon/poplar/poplar.c')
| -rw-r--r-- | board/hisilicon/poplar/poplar.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/board/hisilicon/poplar/poplar.c b/board/hisilicon/poplar/poplar.c new file mode 100644 index 0000000..d542f68 --- /dev/null +++ b/board/hisilicon/poplar/poplar.c @@ -0,0 +1,174 @@ +/* + * (C) Copyright 2017 Linaro + * Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <dm.h> +#include <common.h> +#include <asm/io.h> +#include <dm/platform_data/serial_pl01x.h> +#include <asm/arch/hi3798cv200.h> +#include <asm/arch/dwmmc.h> +#include <asm/armv8/mmu.h> + +DECLARE_GLOBAL_DATA_PTR; + +static struct mm_region poplar_mem_map[] = { + { + .virt = 0x0UL, + .phys = 0x0UL, + .size = 0x80000000UL, + .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | + PTE_BLOCK_INNER_SHARE + }, { + .virt = 0x80000000UL, + .phys = 0x80000000UL, + .size = 0x80000000UL, + .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | + PTE_BLOCK_NON_SHARE | + PTE_BLOCK_PXN | PTE_BLOCK_UXN + }, { + 0, + } +}; + +struct mm_region *mem_map = poplar_mem_map; + +static const struct pl01x_serial_platdata serial_platdata = { + .base = REG_BASE_UART0, + .type = TYPE_PL010, + .clock = 75000000, +}; + +U_BOOT_DEVICE(poplar_serial) = { + .name = "serial_pl01x", + .platdata = &serial_platdata, +}; + +int checkboard(void) +{ + puts("BOARD: Hisilicon HI3798cv200 Poplar\n"); + + return 0; +} + +void reset_cpu(ulong addr) +{ + psci_system_reset(); +} + +int dram_init(void) +{ + gd->ram_size = get_ram_size(NULL, 0x80000000); + + return 0; +} + +/* + * Some linux kernel versions don't use memory before its load address, so to + * be generic we just pretend it isn't there. In previous uboot versions we + * carved the space used by BL31 (runs in DDR on this platfomr) so the PSCI code + * could persist in memory and be left alone by the kernel. + * + * That led to a problem when mapping memory in older kernels. That PSCI code + * now lies in memory below the kernel load offset; it therefore won't be + * touched by the kernel, and by not specially reserving it we avoid the mapping + * problem as well. + * + */ +#define KERNEL_TEXT_OFFSET 0x00080000 + +int dram_init_banksize(void) +{ + gd->bd->bi_dram[0].start = KERNEL_TEXT_OFFSET; + gd->bd->bi_dram[0].size = gd->ram_size - gd->bd->bi_dram[0].start; + + return 0; +} + +static void usb2_phy_config(void) +{ + const u32 config[] = { + /* close EOP pre-emphasis. open data pre-emphasis */ + 0xa1001c, + /* Rcomp = 150mW, increase DC level */ + 0xa00607, + /* keep Rcomp working */ + 0xa10700, + /* Icomp = 212mW, increase current drive */ + 0xa00aab, + /* EMI fix: rx_active not stay 1 when error packets received */ + 0xa11140, + /* Comp mode select */ + 0xa11041, + /* adjust eye diagram */ + 0xa0098c, + /* adjust eye diagram */ + 0xa10a0a, + }; + int i; + + for (i = 0; i < ARRAY_SIZE(config); i++) { + writel(config[i], PERI_CTRL_USB0); + clrsetbits_le32(PERI_CTRL_USB0, BIT(21), BIT(20) | BIT(22)); + udelay(20); + } +} + +static void usb2_phy_init(void) +{ + /* reset usb2 controller bus/utmi/roothub */ + setbits_le32(PERI_CRG46, USB2_BUS_SRST_REQ | USB2_UTMI0_SRST_REQ | + USB2_HST_PHY_SYST_REQ | USB2_OTG_PHY_SYST_REQ); + udelay(200); + + /* reset usb2 phy por/utmi */ + setbits_le32(PERI_CRG47, USB2_PHY01_SRST_REQ | USB2_PHY01_SRST_TREQ1); + udelay(200); + + /* open usb2 ref clk */ + setbits_le32(PERI_CRG47, USB2_PHY01_REF_CKEN); + udelay(300); + + /* cancel usb2 power on reset */ + clrbits_le32(PERI_CRG47, USB2_PHY01_SRST_REQ); + udelay(500); + + usb2_phy_config(); + + /* cancel usb2 port reset, wait comp circuit stable */ + clrbits_le32(PERI_CRG47, USB2_PHY01_SRST_TREQ1); + mdelay(10); + + /* open usb2 controller clk */ + setbits_le32(PERI_CRG46, USB2_BUS_CKEN | USB2_OHCI48M_CKEN | + USB2_OHCI12M_CKEN | USB2_OTG_UTMI_CKEN | + USB2_HST_PHY_CKEN | USB2_UTMI0_CKEN); + udelay(200); + + /* cancel usb2 control reset */ + clrbits_le32(PERI_CRG46, USB2_BUS_SRST_REQ | USB2_UTMI0_SRST_REQ | + USB2_HST_PHY_SYST_REQ | USB2_OTG_PHY_SYST_REQ); + udelay(200); +} + +int board_mmc_init(bd_t *bis) +{ + int ret; + + ret = hi6220_dwmci_add_port(0, REG_BASE_MCI, 8); + if (ret) + printf("mmc init error (%d)\n", ret); + + return ret; +} + +int board_init(void) +{ + usb2_phy_init(); + + return 0; +} + |